Electronic transitions of platinum monofluoride

Add time:09/10/2019    Source:sciencedirect.com

Electronic transition spectrum of platinum monofluoride (PtF) between 431 and 560 nm has been investigated using the technique of laser vaporization/reaction with free jet expansion and laser induced fluorescence spectroscopy. Eight vibrational bands had been observed but only six of them were analyzed, they were grouped into four electronic transitions: the [18.9]2Π3/2 – X2Π3/2, the [18.9]2Π3/2 – [0.04]2Δ5/2, the [19.9]2Δ5/2 – X2Π3/2 and the [23.2]2Δ5/2 – X2Π3/2 transitions. Accurate molecular constants have been determined for the [23.2]2Δ5/2, [19.9]2Δ5/2, [18.9]2Π3/2 and [0.04]2Δ5/2 electronic states. The agreement between experimental determined molecular constants and those from ab initio calculations incorporating the spin-orbit coupling is generally good.

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